10
FORCE E
Installation, Operating & Service Manual
109444-03 - 12/19
WARNING
Failure to properly pipe boiler may result in
improper operation and damage to boiler or
building.
A. Design and install boiler and system piping to
prevent oxygen contamination of boiler water.
Oxygen contamination sources are system leaks
requiring addition of makeup water, fittings,
and oxygen permeable materials in distribution
system. Eliminate oxygen contamination by
repairing system leaks, repairing fittings, and
using non-permeable materials in distribution
system.
B. Install circulator with flanges, gaskets and bolts
provided.
Figure 6-1: Standard Near Boiler Piping
!
6
Water Piping
WARNING
Safety relief valve discharge piping must be
piped near floor to eliminate potential of severe
burns. Do not pipe in any shut-off valves
between:
1. Safety relief valve and boiler
2. Safety relief valve and discharge
Union may be installed in safety relief valve
piping.
!
C. Install safety relief valve. See Figure 6-1 and 6-2.
Safety relief valve must be installed with spindle in
vertical position.
D. Connect system supply and return piping to
boiler. Refer to Figures 6-3 and 6-4. Also consult
Residential Hydronic Heating Installation and
Design I=B=R Guide. Maintain minimum ½ inch
clearance from hot water piping to combustible
materials.
E. If necessary, supply and return may be connected
to right side of boiler by removing 1-1/4" plugs
from right side of block (under knockouts in
jacket).
NOTICE:
Both supply and return connections must
be made on same side of boiler.
F. If boiler is used in connection with refrigeration
system, See Appendix: "Combination
Refrigeration/Heating System".
G. Use a system bypass if boiler is to be operated in
a system which has a large volume or excessive
radiation where low boiler water temperatures may
be encountered (i.e. converted gravity circulation
system, etc.). (See Appendix "Low Return Water
Temperatures").
H. Perform a long term pressure test of hydronic
system, isolate boiler to avoid a pressure loss due
to escape of air trapped in boiler.
To perform a long term pressure test including the
boiler, ALL trapped air must first be removed from
the boiler.
A loss of pressure during such a test, with no
visible water leakage, is an indication that the
boiler contained trapped air.
Safety
Relief
Valve
Right Side
Drain
Return
Temperature
& Pressure
Gauge
Figure 6-2: Alternate Near Boiler Piping
